Intraoperative joint force measuring device, system and method
First Claim
1. A surgical device for joint replacement surgery, comprising:
- an intraoperative joint head having a stem attachment structure, the stem attachment structure being removably attachable to a stem;
a force sensor housed by the joint head for measuring in vivo forces during surgery; and
wherein the in vivo forces are generated from the group consisting of tension provided by soft tissue, load application during surgery, limb movement during surgery, and a combination thereof.
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Accused Products
Abstract
A surgical device for joint replacement surgery includes an intraoperative joint head having a stem attachment structure where the stem attachment structure may be removably attachable to a stem and a force sensor housed by the joint head for measuring in vivo forces during surgery. The in vivo forces may be generated by one or more of tension provided by soft tissue, load application during surgery, limb movement during surgery, and a combination thereof. Also, the joint head may provide a cavity where the stem attachment structure houses the force sensor and may be removably insertable in the joint head cavity. A method of performing joint replacement surgery includes installing an intraoperative joint head having a force sensor housed by the joint head and a stem attachment structure, the stem attachment structure being removably attachable to a stem, measuring joint forces, and adjusting an implant parameter based on the measured joint forces.
79 Citations
20 Claims
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1. A surgical device for joint replacement surgery, comprising:
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an intraoperative joint head having a stem attachment structure, the stem attachment structure being removably attachable to a stem;
a force sensor housed by the joint head for measuring in vivo forces during surgery; and
wherein the in vivo forces are generated from the group consisting of tension provided by soft tissue, load application during surgery, limb movement during surgery, and a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A kit for assisting joint replacement procedures, the kit comprising:
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an intraoperative joint head having a stem attachment structure, the stem attachment structure being removably attachable to a stem;
a force sensor housed by the joint head for measuring in vivo forces during surgery;
wherein the in vivo forces are generated from the group consisting of tension provided by soft tissue, load application during surgery, limb movement during surgery, and a combination thereof; and
an intraoperative joint head tool. - View Dependent Claims (10, 11, 12)
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13. A method of performing joint replacement surgery, comprising the steps of:
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installing an intraoperative joint head having a force sensor housed by the joint head and a stem attachment structure, the stem attachment structure being removably attachable to a stem;
measuring joint forces; and
adjusting an implant parameter based on the measured joint forces. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A surgical system for measuring joint forces during surgery, comprising:
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an intraoperative joint head having a stem attachment structure, the stem attachment structure being removably attachable to a stem, a force sensor housed by the joint head for measuring in vivo forces during surgery, wherein the in vivo forces are generated from the group consisting of tension provided by soft tissue, load application during surgery, limb movement during surgery, and a combination thereof;
an anatomical tracking system for tracking movements of body parts, the system in communication with the force sensor; and
a processor in communication with the anatomical tracking system and the force sensor, the processor programmed to provide calculations selected from the group consisting of in vivo joint reaction forces and in vivo joint vectors.
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Specification